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I installed MyEclipse yesterday and proceeded to debug some code that I was debugging earlier in the day without MyEclipse. After a few runs through the same piece of code, the “Variables” window fell over and stopped displaying objects/members etc, although it did continue to display the little + signs and joining “sticks” etc on the variable “tree”.
An Error dialog appeared suggesting I looked in the log file.
The debug session continues as normal, but I was no longer able to display variables, objects, members etc.
Here is the trace from the log file:
!ENTRY org.eclipse.jface 4 2 Mar 11, 2004 12:52:42.738
!MESSAGE Problems occurred when invoking code from plug-in: “org.eclipse.jface”.
!STACK 0
java.lang.NullPointerException
at org.eclipse.jdt.internal.debug.core.model.JDIValue.getValueString(JDIValue.java:129)
at org.eclipse.jdt.internal.debug.ui.JDIModelPresentation.getValueText(JDIModelPresentation.java:421)
at org.eclipse.jdt.internal.debug.ui.JDIModelPresentation.getVariableText(JDIModelPresentation.java:1039)
at org.eclipse.jdt.internal.debug.ui.JDIModelPresentation.getText(JDIModelPresentation.java:199)
at org.eclipse.debug.internal.ui.LazyModelPresentation.getText(LazyModelPresentation.java:74)
at org.eclipse.debug.internal.ui.DelegatingModelPresentation.getText(DelegatingModelPresentation.java:127)
at org.eclipse.debug.internal.ui.VariablesViewModelPresentation.getText(VariablesViewModelPresentation.java:25)
at org.eclipse.debug.internal.ui.views.variables.VariablesView$VariablesViewLabelProvider.getText(VariablesView.java:137)
at org.eclipse.jface.viewers.TreeViewer.doUpdateItem(TreeViewer.java:95)
at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run(AbstractTreeViewer.java:87)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1006)
at org.eclipse.core.runtime.Platform.run(Platform.java:413)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:406)
at org.eclipse.jface.viewers.StructuredViewer$UpdateItemSafeRunnable.run(StructuredViewer.java:119)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1006)
at org.eclipse.core.runtime.Platform.run(Platform.java:413)
at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:1271)
at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:320)
at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:303)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:289)
at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:697)
at org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java:709)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:175)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:81)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:849)
at org.eclipse.swt.widgets.Tree.wmNotifyChild(Tree.java:1909)
at org.eclipse.swt.widgets.Control.WM_NOTIFY(Control.java:3815)
at org.eclipse.swt.widgets.Composite.WM_NOTIFY(Composite.java:642)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:2816)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:1236)
at org.eclipse.swt.widgets.Tree.callWindowProc(Tree.java:156)
at org.eclipse.swt.widgets.Tree.WM_LBUTTONDOWN(Tree.java:1517)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:2799)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1303)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1543)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1402)
at org.eclipse.ui.internal.Workbench.run(Workbench.java:1385)
at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:858)
at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.eclipse.core.launcher.Main.basicRun(Main.java:291)
at org.eclipse.core.launcher.Main.run(Main.java:747)
at org.eclipse.core.launcher.Main.main(Main.java:583)– System Setup ——————————-
Operating System and version:
Eclipse version: 2.1.1
Eclipse build id: 200306271545
Fresh Eclipse install (y/n): n
If not, was it upgraded to its current version using the update manager? n
Other installed external plugins:
Number of plugins in the <eclipse>/plugins directory that begin with org.eclipse.pde.*: 7
MyEclipse version: 2.7.0
Eclipse JDK version: 1.4.1
Application Server JDK version: 1.4.1
Are there any exceptions in the Eclipse log file? yes – see above– Message Body ——————————-
This is a known problem with Eclipse running into some JDK bugs with some earlier versions of 1.4.1. See here:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=41626It seems you have two choices: upgrade your 1.4.1 version to release 08, or upgrade to the 1.4.2_04 JDK to get rid of the problem. Let us know if this helps.
At present we must stick with 1.4.1_xx for our weblogic version, so I will try 1.4.1_08 and see how it goes. Thanks. Rob.
No problem, if you can come back and let us know if it helps, that would be great (incase other users run into this problem).
